The beast mode is someone from feline family. A lion, or a tiger? I really don't see much difference between them in tf universe The fourth mode is some kind of jet / spacecraft.Here are 2 more renders. Are they clearer?And thanks for your reply.

The beatmode is good, I like the guntail. Heads make or break beast modes anyway, but it's hard to get a read on the tiger head. Sixshot's animal head was the key to the coolness of that mode, whatever it was.

The jet mode definitely reads as more of a spacecraft. I doubt it would be capable of flight without anti-grav, but it could have lifting body properties for atmostpheric landings.

Nothing special.I like designing 3D robots with "geometry-right" transforming. But once I thought: "I am bored of my simple cubic designs. I must try something more complex."So I just tested my skills in designing something "smoothed", and here is the result.